Comments for D/Line Radiohttps://www.dlineradio.co.uk
Wearing the many technical hats of radio.Tue, 08 Aug 2017 11:45:19 +0000hourly1https://wordpress.org/?v=4.8.1Comment on Plotting for Improvement by marchttps://www.dlineradio.co.uk/articles/plotting-for-improvement/#comment-45
Tue, 08 Aug 2017 11:45:19 +0000https://www.dlineradio.co.uk/?p=481#comment-45A couple of things I found make a surprising difference in Radio Mobile are the terrain data used and the step size for the plot (0.1 degrees).

In terms of RF settings, I’m plotting down to the levels in the article. You can set these as thresholds in the Single Polar Coverage plotting screen.

I’ve got the units set up as part of a single network operating two systems. The TX system has 25W ERP (or whatever you’re setting) with an appropriate antenna pattern and gain. I don’t bother setting the antenna height here and worry about line loss later (set it to 0dB/m). On the unit properties for the system is where I set the antenna height.

The sensitivity is set to 54 micro volts. Realistically, this is only useful on point-to-point plots where I’m looking at calculating link budget for a data link. Generally, fresnel is more of a worry there anyway.

The RX has similar properties but uses and omni antenna at 10m AGL. This simulates the old BBC model used by almost everyone but provides a good indoor coverage guesstimate for portable receivers. As you know, in-car coverage is always much better. 😉

That’s about as exciting as it gets. I know a colleague has found that plots can vary a bit depending on how zoomed in you are to the map.

Overall, I’ve found it a good tool for pointing out and trying to get round terrain issues. Even if, as with anything in RF, the prediction isn’t 100% spot on.

]]>Comment on Plotting for Improvement by Nathan Silvestonhttps://www.dlineradio.co.uk/articles/plotting-for-improvement/#comment-44
Tue, 08 Aug 2017 07:08:20 +0000https://www.dlineradio.co.uk/?p=481#comment-44interesting article, out of interest what settings are you using in radio mobile? i do tend to find that its a tough one to get it even modestly representing the coverage area well. and its always interesting to see how others are doing the same thing
]]>Comment on Secure Your Network, Break Your Branding by marchttps://www.dlineradio.co.uk/articles/secure-your-network-break-your-branding/#comment-43
Fri, 04 Aug 2017 10:26:52 +0000https://www.dlineradio.co.uk/?p=465#comment-43I’ve not had a chance to look at this issue again recently but I’ve not heard change on the topic. It’s a shame as it does look a bit off compared to the rest of the login screen.
]]>Comment on Secure Your Network, Break Your Branding by Jiří Schimmerhttps://www.dlineradio.co.uk/articles/secure-your-network-break-your-branding/#comment-42
Fri, 04 Aug 2017 09:37:10 +0000https://www.dlineradio.co.uk/?p=465#comment-42Hi,
did anything changed in this matter?
We have W10 Pro and have also this ugly key instead of avatar.
Did you find any solution?
Thanks
Jiří
]]>Comment on IP for Serial Controlled Audio Switches by Simon Blakehttps://www.dlineradio.co.uk/articles/ip-for-serial-controlled-audio-switches/#comment-41
Mon, 15 May 2017 10:27:00 +0000http://www.dlineradio.co.uk/?p=92#comment-41Thanks, Marc. However, when I try to run the Launcher.class file, I’m told:

Could not find or load main class Launcher.class.

I must be doing something wrong, but I’m not at all clear what that is!

]]>Comment on IP for Serial Controlled Audio Switches by marchttps://www.dlineradio.co.uk/articles/ip-for-serial-controlled-audio-switches/#comment-40
Tue, 09 May 2017 16:20:08 +0000http://www.dlineradio.co.uk/?p=92#comment-40There’s no reason it couldn’t work if the serial library work on the Pi. A quick bit of research suggests you will need to install the native version of the library using the sudo apt-get install librxtx-java command.
]]>Comment on IP for Serial Controlled Audio Switches by Simon Blakehttps://www.dlineradio.co.uk/articles/ip-for-serial-controlled-audio-switches/#comment-39
Tue, 09 May 2017 15:44:22 +0000http://www.dlineradio.co.uk/?p=92#comment-39Hi Marc

Can I run this on a Raspberry Pi? That would be v useful!

]]>Comment on STLs and Raspberry Pis by Vloghttps://www.dlineradio.co.uk/articles/stls-and-raspberry-pis/#comment-38
Fri, 17 Feb 2017 15:43:58 +0000http://www.dlineradio.co.uk/?p=15#comment-38Nice one, Marc. Glad I found this post. Got the Raspian image on the SD card.
]]>Comment on STLs and Raspberry Pis by marchttps://www.dlineradio.co.uk/articles/stls-and-raspberry-pis/#comment-37
Thu, 15 Dec 2016 09:16:48 +0000http://www.dlineradio.co.uk/?p=15#comment-37There’s no reason this couldn’t work over a 3G (or 4G) mobile service. So long as the Icecast server is publically available or you can setup a VPN connection, it should work. Though you are at the whim of the mobile network in terms of availability and I’d expect some contention problems if you’re in a high traffic area (e.g. near an arena during an event).

As for building an SD card image, I’m afraid I don’t have the time to build and test one. That said, installing the required software shouldn’t be too taxing if you can get a standard Raspbian image on an SD card for a Pi.

]]>Comment on STLs and Raspberry Pis by Bonushttps://www.dlineradio.co.uk/articles/stls-and-raspberry-pis/#comment-36
Thu, 15 Dec 2016 02:21:09 +0000http://www.dlineradio.co.uk/?p=15#comment-36Hi , is it possible to use this with a mobile net dongle (3 or 4G)
Could anyone make me an image on SD disk of software pre installed as my knowledge and time available is limited on this still.
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